Very few have an inkling of how to clean,or even what to clean.

Scatterguns and most pistols are forgiving of both,because they are not instruments of precision,so the affect(s) aren't easily discerned or correlated.

Rifles on the other hand are a whole 'nother animal. Excess lube is a detriment both in the short and long terms. CBS POA/POI intersections are an initial short term factor and bedding along with other mechanical concessions,a long term bane.

I shoot more than anyone I know and clean less than anyone I know and that melding isn't an "accident",as constants have been realized over 100's of barrels.

Hint.